rare plants of delaware plants of delaware...rare plants of delaware william a. mcavoy species...
TRANSCRIPT
RARE PLANTS OF DELAWARE
William A. McAvoy
Species Conservation and Research Program
Delaware Division of Fish and Wildlife
Delaware Dept. of Natural Resources and Environmental Control
April 2013
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Acorus americanus American sweetflag SH SH
Actaea pachypoda white baneberry S1 S1
Adlumia fungosa climbing fumitory SX SX
Aeschynomene virginica (G2, LT) sensitive joint-vetch SX SX
Agalinis linifolia flaxleaf flase foxglove SH SH
Agalinis maritima var. maritima salt marsh false foxglove S1 S1
Agalinis obtusifolia ten-lobe false foxglove SH SH
Agalinis setacea thread-leaved false foxglove S1 S1
Agalinis tenuifolia var. tenuifolia slender false foxglove S1 S1 S1
Agastache nepetoides yellow giant hyssop S2 S2 S2
Agastache scrophulariifolia purple giant hyssop SH SH
Agrimonia striata edge agrimony S2 S2
Amaranthus pumilus (G2, LT) seabeach amaranth S1 S1
Amianthium muscitoxicum fly-poison S2 S2 S2
Amphicarpum amphicarpon peanut grass S2 S2
Anaphalis margaritacea pearly everlasting SH SH
Andropogon elliottii Elliott's bluestem SH SH SH
Andropogon hirsutior Southern bushy broom-sedge S1 S1.1
Angelica atropurpurea great Angelica S1.1 S1.1
Angelica venenosa hairy Angelica S2 S2 S2
Anthoxanthum hirtum vanilla grass S1 S1
Aplectrum hyemale puttyroot S1 S1
Apocynum androsaemifolium spreading dogbane S1 S1 S1
Apocynum sibiricum clasping-leaved dogbane SH SH
Aquilegia canadensis wild columbine S2 S2 S2
Arabidopsis lyrata subsp. lyrata lyre-leaf rockcress S1 S1 S1
Arctostaphylos uva-ursi bearberry SX SX
Arethusa bulbosa dragon's mouth orchid SH SH
Arisaema dracontium green dragon S2 S2
Aristida lanosa woolly three-awn grass SH SH
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Aristida virgata wand-like three-awn grass S1 S1
Arnica acaulis leopard's-bane SH SH
Arnoglossum atriplicifolium pale Indian-plantain S2 S2 S2
Aronia melanocarpa black chokeberry SH SH
Asclepias exaltata poke milkweed S2 S2
Asclepias lanceolata lance-leaf orange milkweed S1 S1
Asclepias longifolia long-leaf milkweed SX SX
Asclepias purpurascens purple milkweed S2 S2 S2
Asclepias quadrifolia four-leaved milkweed SH SH
Asclepias rubra red milkweed S1 S1 S1
Asclepias variegata white milkweed S2 S2 S2
Asclepias verticillata whorled milkweed SH SH SH
Asplenium rhizophyllum walking-fern spleenwort SX SX
Asplenium trichomanes subsp. trichomanes maidenhair spleenwort S1.1 S1.1
Aureolaria flava var. flava yellow false-foxglove S1 S1 S1
Aureolaria pedicularia var. pedicularia fernleaf yellow false foxglove S1 S1 S1
Bartonia paniculata subsp. paniculata twining bartonia S2 S2 S2
Betula populifolia gray birch S2 S2 S2
Bidens bidentoides estuary tick-seed SH SH
Bidens mitis small-fruited tick-seed S2 S2
Blephilia ciliata downy woodmint SH SH
Blephilia hirsuta hairy woodmint SH SH
Boechera canadensis sicklepod S2 S2 S2
Boechera laevigata var. laevigata smooth rockcress S1 S1
Boechera stricta Drummond's rockcress SH SH
Bolboschoenus novae-angliae brackish bulrush S1 S1
Boltonia asteroides var. glastifolia aster-like boltonia S2 S2
Botrychium matricariifolium daisy-leaf moonwort S1 S1
Bromus latiglumis broad-glumed brome S1.1 S1.1
Bromus pubescens hairy wood brome S2 S2
Buchnera americana bluehearts SH SH SH
Calamagrostis canadensis var. canadensis blue-joint reedgrass S1 S1
Calopogon tuberosus var. tuberosus grass-pink orchid S1 SH S1
Caltha palustris marsh marigold S2 S2 S2
Calystegia spithamaea subsp. spithamaea low bindweed S1 S1
Campanula aparinoides marsh bellflower S2 S2 SH
Cardamine angustata slender toothwort S2 S2
Cardamine longii (G3) Long's bittercress S2 S2
Cardamine parviflora var. arenicola small-flower bittercress S1 S1 S1
Cardamine rotundifolia roundleaf bittercress S1.1 S1.1
Carex argyrantha hay sedge SX SX
Carex bicknellii Bicknel's sedge SX SX
Carex brevior fescue sedge SX SX
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Carex bromoides subsp. bromoides brome-like sedge S2 S2 S2
Carex bushii Bush's sedge S2 S2
Carex buxbaumii Buxbaum's sedge S1.1 S1.1
Carex communis var. communis fibrous-root sedge S2 S2
Carex conoidea field sedge S1.1 S1.1
Carex cristatella crested sedge S1.1 S1.1
Carex davisii Davis' sedge S1 S1
Carex decomposita (G3) cypress-knee sedge S1 S1
Carex emoryi Emory's sedge S1 S1 S1
Carex exilis coast sedge S1 S1
Carex gracilescens slender sedge S2 S2
Carex grisea inflated narrowleaf sedge S1.1 S1.1
Carex gynandra nodding sedge S2 S2 S2
Carex jamesii James's sedge S1.1 S1.1
Carex joorii cypress-swamp sedge S2 S2
Carex kraliana Kral's sedge S1 S1
Carex lacustris river-bank sedge S1 S1
Carex leptalea subsp. leptalea Piedmont bristly-stalk sedge S1 S1
Carex limosa mud sedge SX SX
Carex lucorum var. lucorum long-beaked sedge SH SH
Carex lupuliformis false hop sedge S2 S2
Carex oligocarpa Eastern few-fruit sedge S1.1 S1.1
Carex pedunculata var. pedunculata longstalk sedge SH SH
Carex pellita woolly sedge S2 S2 S2
Carex planispicata flat-spiked sedge S2 S2
Carex retroflexa reflexed sedge S1 S1 S1
Carex scabrata rough sedge S1 S1
Carex silicea seabeach sedge S2 S2
Carex sparganioides bur-reed sedge S2 S2 S1.1
Carex sprengelii longbeak sedge SH SH
Carex straminea straw sedge S1 S1 S1
Carex tetanica var. canbyi sedge S1.1 S1.1
Carex torta twisted sedge S2 S2
Carex trichocarpa hairy-fruit sedge S2 S2
Carex trisperma three-seed sedge SH SH
Carex utriculata beaked sedge SH SH
Carex vesicaria inflated sedge S1 S1
Carex vestita velvety sedge S2 S2
Carex willdenowii Willdenow's sedge S1 S1
Castilleja coccinea scarlet Indian-paintbrush SX SX
Ceanothus americanus New Jersey tea S2 S2 S2
Celastrus scandens climbing bittersweet SH SH SH
Centrosema virginianum coastal butterfly-pea SH SH
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Cerastium nutans nodding chickweed S1 S1 S1
Cerastium velutinum var. velutinum serpentine chickweed S1.1 S1.1
Cercis canadensis var. canadensis Eastern redbud SH SH
Chaerophyllum procumbens var. procumbens spreading chervil S2 S2 S2
Chamaedaphne calyculata leatherleaf SH SH
Chamaelirium luteum devil's-bit S1 S1
Chamerion platyphyllum fireweed SH SH SH
Chasmanthium latifolium broad spikegrass SH SH
Cheilanthes lanosa hairy lipfern SX SX
Chimaphila umbellata var. cisatlantica pipsissewa S2 S2
Cicuta bulbifera bulb-bearing water-hemlock S1 S1
Cirsium altissimum tall thistle SH SH
Cirsium muticum swamp thistle SH SH SH
Cirsium virginianum (G3) Virginia thistle SH SH
Cleistesiopsis divaricata spreading pogonia SX SX
Clematis occidentalis var. occidentalis purple clematis SX SX
Clematis viorna vase-vine leatherflower S1.1 S1.1
Clitoria mariana var. mariana Maryland butterfly-pea S2 S2 S2
Coelorachis rugosa wrinkled jointgrass S1 S1
Commelina erecta sand dayflower S2 S2
Commelina virginica Virginia dayflower S1 S1
Comptonia peregrina sweet-fern S2 SH S2
Conopholis americana squaw-root S2 S2
Corallorhiza maculata var. maculata spotted coralroot SH SH
Corallorhiza odontorhiza autumn coralroot S1 S1 S1
Corallorhiza wisteriana spring coralroot SH SH
Coreopsis rosea (G3) rose coreopsis S1 S1
Cornus racemosa gray dogwood SH SH
Cornus stricta marsh dogwood S2 S2
Corydalis flavula yellow corydalis S1.1 S1.1
Corylus cornuta beaked hazelnut S1.1 S1.1
Crassula aquatica water-pigmyweed SX SX
Crocanthemum bicknellii Bicknell's hoary frostweed SX SX
Cunila origanoides dittany S2 S2 S2
Cuphea viscosissima blue waxweed S2 S2 S2
Cyperus dentatus toothed flatsedge SH SH
Cyperus diandrus umbrella flatsedge S1 S1
Cyperus hystricinus flatsedge S1 S1
Cyperus lancastriensis Lancaster's flatsedge S1 S1 S1
Cyperus plukenetii Plukenet's flatsedge SH SH SH
Cyperus refractus reflexed flatsedge S1 S1
Cyperus retrofractus rough flatsedge SH SH SH
Cypripedium parviflorum var. pubescens large yellow lady's-slipper S1 S1 S1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Cystopteris protrusa lowland fragile fern S2 S2 S2
Cystopteris tenuis bladderfern S1 S1
Danthonia compressa flattened oatgrass S2 S2
Danthonia sericea silky oatgrass S1 S1
Desmodium canadense showy tick-trefoil SH SH
Desmodium canescens hoary tick-trefoil S1 S1 S1
Desmodium cuspidatum var. cuspidatum toothed tick-trefoil SH SH
Desmodium fernaldii Fernald's tick-trefoil S1.1 S1.1
Desmodium humifusum (G1G2Q) trailing tick-trefoil SH SH
Desmodium obtusum stiff tick-trefoil S1 S1 S1
Desmodium ochroleucum (G2G3) creamflower tick-trefoil SH SH
Desmodium strictum pineland tick-trefoil S2 S2
Dichanthelium aciculare needle-leaf witch grass S1 S1
Dichanthelium angustifolium narrow-leaved witch grass SH SH
Dichanthelium boreale Northern witch grass SH SH
Dichanthelium dichotomum var. roanokense Roanoke witch grass S2 S2
Dichanthelium hirstii (G1, C) Hirst Brothers' panic grass S1.1 S1.1
Dichanthelium linearifolium slim-leaf witch grass SH SH
Dichanthelium longiligulatum long-ligule witch grass SH SH
Dichanthelium oligosanthes var. scribnerianum Scribner's witch grass S2 S2
Dichanthelium scabriusculum tall swamp witch grass S1 S1
Dichanthelium wrightianum Wright's witch grass S2 S2
Dichanthelium yadkinense Yadkin's witch grass S1 S1
Diervilla lonicera Northern bush-honeysuckle S1 S1
Diphasiastrum tristachyum ground-cedar clubmoss S2 S2 S2
Diplazium pycnocarpon glade fern S1.1 S1.1
Dirca palustris Eastern leatherwood S1.1 S1.1
Doellingeria infirma cornel-leaf aster S1 S1 S1
Drosera capillaris pink sundew SH SH
Drosera filiformis thread-leaf sundew SX SX
Drosera rotundifolia var. rotundifolia roundleaf sundew S2 SH S2
Dryopteris celsa log wood-fern S2 S2 S2
Dryopteris clintoniana Clinton's wood-fern S1 S1
Dryopteris goldiana Goldie's wood-fern S1 S1 S1
Echinodorus tenellus American dwarf burhead SX SX
Elatine americana American waterwort S2 S2
Elatine minima small waterwort S2 S2
Eleocharis aestuum (G3) estuary spikerush SH SH
Eleocharis brittonii Britton's spikerush SH SH
Eleocharis equisetoides horsetail spikerush S1 S1
Eleocharis erythropoda bald spikerush S1 S1 S1
Eleocharis flavescens var. flavescens pale spikerush SH SH
Eleocharis halophila salt marsh spikerush S1.1 S1.1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Eleocharis melanocarpa black-fruit spikerush S2 S2
Eleocharis rostellata beaked spikerush S2 S2
Eleocharis tricostata tree-angle spikerush S1 S1
Elephantopus nudatus smooth elephant-foot S2 S2
Elymus hystrix var. hystrix bottlebrush wild rye S2 S2
Equisetum fluviatile water horsetail S1 S1
Equisetum hyemale subsp. affine scouring-rush horsetail S1 S1 S1
Equisetum sylvaticum woodland horsetail S1 S1
Eragrostis hypnoides teal lovegrass S2 S2 S2
Eragrostis refracta meadow lovegrass S2 S2
Eriocaulon aquaticum seven-angled pipewort S2 S2
Eriocaulon compressum flattened pipewort S2 S2
Eriocaulon decangulare ten-angle pipewort S1 S1
Eriocaulon parkeri (G3) Parker's pipewort S2 S2
Eriophorum gracile slender cotton-grass sedge SX SX
Eriophorum virginicum tawny cotton-grass sedge S1 SH S1
Eryngium aquaticum var. aquaticum rattlesnake-master S2 S2
Euonymus atropurpureus wahoo S1 S1
Eupatorium resinosum (G3) pine barren boneset SX SX
Eupatorium sessilifolium var. sessilifolium sessile-leaf thoroughwort S1 S1 S1
Euphorbia purpurea (G3) glade spurge S1.1 S1.1 S1.1
Eurybia radula rough-leaf wood-aster SH SH
Eurybia schreberi Schreber's aster S2 S2
Eurybia spectabilis showy aster S1 S1
Festuca paradoxa cluster fescue SH SH
Fimbristylis annua annual fimbry SH SH
Fimbristylis caroliniana Carolina fimbry S2 S2
Fimbristylis perpusilla (G2) Harper's fimbristylis S1 S1
Fraxinus nigra black ash S2 S2 S2
Galium asprellum rough bedstraw S2 S2
Galium boreale Northern bedstraw SH SH
Galium hispidulum coast bedstraw SH SH
Gaura biennis biennial gaura SH SH
Gaylussacia bigeloviana Northern dwarf huckleberry SH SH
Gaylussacia brachycera (G3) box huckleberry S1 S1
Gentiana andrewsii var. andrewsii closed-bottle gentian S1.1 S1.1 S1.1
Gentiana autumnalis (G3) pine barren gentian SX SX
Gentiana villosa striped gentian SH SH
Gentianopsis crinita fringed gentian SX SX
Geum virginianum pale avens S1 S1 S1
Gillenia trifoliata Bowman's-root SH SH
Glyceria acutiflora sharp-scaled mannagrass S2 S2
Glyceria canadensis Canada mannagrass S1 S1 S1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Glyceria grandis American mannagrass S1.1 S1.1
Glyceria laxa Northern mannagrass S1.1 S1.1
Gratiola brevifolia sticky hedge-hyssop S1.1 S1.1
Gratiola viscidula Short's hedge-hyssop SH SH
Gymnopogon ambiguus Eastern beardgrass S1 S1
Gymnopogon brevifolius pineland beardgrass SH SH
Helianthus divaricatus woodland sunflower S1 S1 S1
Helianthus strumosus pale-leaf sunflower SH SH
Heliopsis helianthoides var. helianthoides ox-eye S1 S1 S1
Helonias bullata (G3, LT) swamp-pink S2 S2
Heteranthera dubia grassleaf mud-plantain S2 S2
Honckenya peploides subsp. robusta seabeach sandwort SH SH
Hottonia inflata featherfoil S2 S2
Houstonia purpurea var. purpurea purple bluet S2 S2 S2
Hudsonia ericoides golden-heather S1 S1
Hybanthus concolor green violet S1 S1
Hydrangea arborescens wild hydrangea SH SH
Hylodesmum glutinosum large tick-trefoil S2 S2 S2
Hypericum adpressum (G3) creeping St. John's-wort S2 S2
Hypericum boreale Northern St. John's-wort S1 S1
Hypericum densiflorum var. densiflorum bushy St. John's-wort S2 S2
Hypericum denticulatum coppery St. John's-wort S2 S2
Hypericum drummondii Drummond's St. John's-wort S1.1 S1.1
Hypericum ellipticum pale St. John's-wort SH SH
Hypericum fraseri Northern marsh St. John's-wort S1.1 S1.1
Hypericum majus larger Canadian St. John's-wort SX SX
Hypericum prolificum shrubby St. John's-wort S1.1 S1.1
Hypopitys monotropa American pinesap S2 S2 S2
Ionactis linariifolia flaxleaf aster S2 S2 S2
Iris prismatica slender blueflag iris S2 S2
Isoetes engelmannii Engelmann's quillwort S2 S2 S2
Isoetes riparia riverbank quillwort S1 S1
Isoetes tenella spiny-spored quillwort S1.1 S1.1
Isoetes valida Carolina quillwort SH SH SH
Isotria medeoloides (G2, LT) small whorled pogonia S1.1 S1.1
Juncus coriaceus leathery rush S2 S2
Juncus elliottii bog rush SH SH
Juncus militaris bayonet rush S2 S2
Juncus nodosus knotted rush SH SH
Juncus pelocarpus brown-fruited rush S2 S2
Juncus subcaudatus short-tailed rush S1 S1 S1
Kalmia angustifolia sheep-laurel S2 S2
Lachnanthes caroliniana Carolina redroot S1 S1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Lactuca floridana woodland lettuce S2 S2 S2
Lathyrus palustris vetchling peavine SH SH
Lechea maritima var. virginica Southern beach pinweed SH SH
Lechea mucronata hairy pinweed S2 S2
Lespedeza stuevei tall bushclover S2 S2
Liatris pilosa grassleaf blazingstar S2 S2
Liatris scariosa var. scariosa round-head blazing-star SH SH
Liatris spicata var. resinosa spicate blazingstar SH SH
Liatris spicata var. spicata spicate blazingstar SH SH SH
Liatris squarrosa var. squarrosa Northern blazingstar SH SH
Lilium canadense subsp. canadense Canada lily S2 S2 S2
Lilium philadelphicum var. philadelphicum wood lily SX SX
Limnobium spongia American frog's-bit S2 S2
Limosella australis mudwort SX SX
Linum intercursum sandplain flax S1 S1
Liparis liliifolia large twayblade S2 S2 S2
Lithospermum virginianum Virginia false gromwell SH SH SH
Lobelia boykinii (G2G3) Boykin's lobelia SX SX
Lobelia canbyi Canby's lobelia S2 S2
Lobelia elongata Southern blue lobelia S1.1 S1.1
Lobelia spicata var. campanulata pale-spike lobelia SH SH
Lobelia spicata var. spicata pale-spike lobelia S2 S2 S2
Lophiola aurea golden crest SX SX
Ludwigia hirtella hairy seedbox S1 S1
Lupinus perennis purple lupine S1 S1
Luzula acuminata var. acuminata Northern hairy woodrush S1 S1
Luzula acuminata var. carolinae Southern hairy woodrush S1 S1
Lycopus amplectens sessile-leaved bugleweed S2 S2
Lygodium palmatum climbing fern S1.1 S1.1 S1.1
Lyonia mariana staggerbush S2 S2
Lysimachia hybrida lowland loosestrife S2 S2
Malaxis unifolia green adder's-mouth S1 S1 S1
Matelea carolinensis Carolina anglepod S2 S2
Menyanthes trifoliata bog buckbean SX SX
Micranthemum micranthemoides Nuttall's micranthemum SX SX
Micranthes pensylvanica swamp saxifrage S1.1 S1.1 S1.1
Minuartia caroliniana pine barren sandwort S1.1 S1.1
Minuartia michauxii var. michauxii rock sandwort SX SX
Mitella diphylla two-leaf Bishop's-cap S2 S2 S2
Monarda clinopodia basil beebalm S2 S2
Monotropsis odorata (G3) sweet pinesap SH SH SH
Morella caroliniensis evergreen bayberry S2 S2
Muhlenbergia capillaris long-awn muhly SH SH
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Muhlenbergia sobolifera cliff muhly S2 S2
Muhlenbergia sylvatica woodland muhly SH SH
Muhlenbergia tenuiflora slender muhly S2 S2 S2
Muhlenbergia torreyana (G3) Torrey's muhly SX SX
Myosotis macrosperma large-seed forget-me-not S1 S1
Myosotis verna spring forget-me-not SH SH SH
Myriophyllum pinnatum cutleaf water-milfoil S2 S2
Nabalus albus white rattlesnake-root SH SH
Nabalus autumnalis slender rattlesnake-root SH SH
Najas gracillima thread-like naiad S1 S1
Narthecium americanum (G2, C) bog asphodel SX SX
Nelumbo lutea American lotus S1.1 S1.1
Nymphoides cordata little floatingheart S1 S1
Oclemena nemoralis bog aster SX SX
Oenothera fruticosa var. fruticosa narrow-leaf evening-primrose S2 S2 S2
Oenothera tetragona var. tetragona shrubby evening-primrose S2 S2 S2
Ophioglossum pusillum Northern adder's-tongue SH SH
Orthilia secunda one-side shinleaf SH SH
Ostrya virginiana Eastern hop-hornbeam S2 S2
Packera anonyma Small's ragwort S1.1 S1.1
Packera paupercula var. paupercula balsam ragwort S1 S1 S1
Panax quinquefolius American ginseng S2 S2 S2
Panicum hemitomon maidencane panicgrass S2 S2
Panicum philadelphicum Philadelphia panicgrass S1.1 S1.1 S1.1
Parathelypteris simulata bog fern S2 S2
Paronychia fastigiata var. fastigiata cluster-stemmed nailwort S2 S2 S2
Paronychia fastigiata var. paleacea cluster-stemmed nailwort S2 S2
Pedicularis canadensis early wood lousewort S2 S2
Pedicularis lanceolata swamp lousewort SH SH SH
Penstemon hirsutus hairy beardtongue SH SH
Penstemon laevigatus smooth beardtongue S1 S1 S1
Persea palustris red bay SH SH
Persicaria careyi Carey's smartweed SH SH
Phacelia dubia var. dubia small-flower scorpionweed SH SH
Phaseolus polystachios wild kidney bean SH SH SH
Phegopteris connectilis Northern beech fern SH SH
Phemeranthus teretifolius round-leaved fame-flower SX SX
Phlox pilosa subsp. pilosa downy phlox SX SX
Phragmites australis subsp. americanus North American reed S2 S2
Phyla lanceolata fog-fruit S2 S2
Phyllanthus caroliniensis Carolina leaf-flower S1 S1
Physalis virginiana Virginia ground-cherry SH SH
Physocarpus opulifolius var. opulifolius Eastern ninebark SH SH
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Piptatherum racemosum black-fruit mountain-ricegrass SH SH
Pityopsis graminifolia var. latifolia grassleaf golden aster SH SH
Platanthera blephariglottis white-fringe orchis S1 S1
Platanthera ciliaris yellow-fringe orchid SH SH SH
Platanthera cristata yellow-crested orchis S2 S2
Platanthera flava var. flava Southern rein orchid S1.1 S1.1
Platanthera flava var. herbiola Northern rein orchid S1.1 S1.1
Platanthera grandiflora large purple-fringe orchis SX SX
Platanthera nivea snowy orchis SH SH
Platanthera peramoena purple fringeless orchid S1 S1 S1
Platanthera psycodes small purple-fringe orchis SH SH
Pleopeltis polypodioides subsp. michauxiana resurrection fern SX SX
Pluchea camphorata marsh fleabane SH SH
Poa cuspidata early bluegrass S2 S2
Poa paludigena bog bluegrass S1.1 S1.1
Podostemum ceratophyllum threadfoot S1 S1
Pogonia ophioglossoides rose pogonia S2 SH S2
Polygala ambigua whorled milkwort SH SH SH
Polygala cruciata var. aquilonia crossleaf milkwort S2 S2
Polygala cymosa tall pine barren milkwort SX SX
Polygala incarnata pink milkwort S1 S1 S1
Polygala ramosa low pine barren milkwort SX SX
Polygala senega var. latifolia Seneca milkwort SX SX
Polygonum glaucum (G3) seabeach knotweed S1 S1
Polygonum ramosissimum bushy knotweed S2 S2
Polygonum tenue slender knotweed SH SH SH
Potamogeton natans floating pondweed S1 S1
Potamogeton robbinsii flatleaf pondweed SX SX
Puccinellia fasciculata salt marsh goosegrass SH SH
Pycnanthemum clinopodioides (G2) basil mountain-mint SH SH
Pycnanthemum incanum var. incanum hoary mountain-mint S1 S1 S1
Pycnanthemum torreyi (G2) Torrey's mountain-mint SH SH SH
Pyrola americana round-leaf shinleaf S2 S2 S2
Pyrola chlorantha green-flower shinleaf SH SH
Pyrola elliptica elliptic shinleaf S2 S2
Quercus ilicifolia scrub oak SH SH SH
Quercus lyrata overcup oak S2 S2
Quercus prinoides dwarf chinquapin oak S1 SH S1
Ranunculus ambigens water-plantain buttercup S1.1 S1.1
Ranunculus caricetorum hispid buttercup S1 S1
Ranunculus flabellaris yellow water-crowfoot S1.1 S1.1
Ranunculus hispidus bristly buttercup S1.1 S1.1
Ranunculus laxicaulis Mississippi buttercup SH SH
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Ranunculus longirostris Eastern white water-crowfoot SX SX
Ranunculus septentrionalis shining hispid buttercup S1.1 S1.1
Rhexia aristosa (G3) awned meadowbeauty S1 S1
Rhododendron prinophyllum roseshell azalea SH SH SH
Rhynchosia tomentosa hairy snoutbean S1 S1
Rhynchospora alba white beakrush S2 S2
Rhynchospora careyana Carey's beakrush SH SH
Rhynchospora cephalantha var. cephalantha capitate beakrush S2 S2
Rhynchospora corniculata short-bristle beakrush S2 S2
Rhynchospora filifolia thread-leaved beakrush S1.1 S1.1
Rhynchospora fusca brown beakrush S2 S2
Rhynchospora glomerata clustered beakrush S2 S2
Rhynchospora harperi Harper's beakrush S1 S1
Rhynchospora inundata drowned beakrush S1 S1
Rhynchospora knieskernii (G1, LT) Knieskern's beakrush SX SX
Rhynchospora microcephala tiny-headed beakrush S2 S2
Rhynchospora nitens short-beaked beakrush S1 S1
Rhynchospora oligantha feather-bristle beakrush SH SH
Rhynchospora pallida (G3) pale beakrush SH SH
Rhynchospora rariflora few-flowered beakrush S1.1 S1.1
Rhynchospora recognita robust globe beakrush S2 SH S2
Rhynchospora scirpoides long-beaked beakrush S2 S2
Rhynchospora torreyana Torrey's beakrush S2 S2
Ribes americanum wild black gooseberry SH SH
Ribes hirtellum Northern gooseberry SH SH
Rubus odoratus purple-flowering raspberry S1 S1
Rudbeckia fulgida var. fulgida orange coneflower SH SH
Rumex altissimus tall dock S1 S1
Sabatia campanulata slender marsh pink S1 S1
Sabatia difformis two-formed pink S1 S1
Sabatia dodecandra large marsh pink S1 S1
Saccharum brevibarbe var. contortum bent-awn plumegrass S2 S2
Saccharum coarctatum bunched plumegrass S2 S2
Sacciolepis striata gibbous grass S1 S1
Sagittaria engelmanniana Engelmann's arrowhead S2 S2
Sagittaria graminea grassleaf arrowhead S2 S2
Sagittaria lancifolia var. media bull-tongue arrowhead S1.1 S1.1
Sagittaria rigida sessile-fruited arrowhead SH SH
Sagittaria spatulata tidal arrowhead S1 S1
Sagittaria subulata strap-leaf arrowhead S2 S2
Salicornia bigelovii dwarf glasswort S1 S1
Salix interior sandbar willow SH SH
Salix sericea silky willow S1 S1 S1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Sanguisorba canadensis Canada burnet SH SH
Sanicula marilandica Maryland black snakeroot S1.1 S1.1
Sanicula trifoliata large-fruited snakeroot S1.1 S1.1
Sarracenia purpurea var. purpurea Northern purple pitcherplant S2 SH S2
Schizaea pusilla curly-grass fern S1.1 S1.1
Schoenoplectiella purshiana var. purshiana bristled weakstalk bulrush S2 S2 S2
Schoenoplectiella purshiana var. williamsii bristleless weakstalk bulrush S2 S2
Schoenoplectiella smithii var. setosa Smith's bristled bulrush S1.1 S1.1
Schoenoplectiella smithii var. smithii Smith's bulrush SH SH
Schoenoplectus etuberculatus Canby's bulrush S1 S1
Schoenoplectus subterminalis water bulrush S2 S2
Schwalbea americana (G2, LE) American chaffseed SX SX
Scirpus atrovirens a bulrush S1 S1
Scirpus expansus red-stem bulrush S2 S2
Scirpus pendulus pendulous bulrush S2 S2 S2
Scleria muehlenbergii Muhlenberg's nutrush S1 S1
Scleria nitida shining nutrush SH SH SH
Scleria pauciflora var. caroliniana hairy few-flowered nutrush S1 S1
Scleria pauciflora var. pauciflora smooth few-flowered nutrush S1 S1 S1
Scleria triglomerata whip nutrush S2 S2
Sclerolepis uniflora one-flowered bog button S2 S2
Scrophularia lanceolata hare's figwort SH SH
Scutellaria galericulata hooded skullcap S1 S1
Scutellaria leonardii dwarf skullcap SH SH
Scutellaria nervosa veined skullcap SH SH
Scutellaria saxatilis rock skullcap SH SH
Sedum ternatum woodland stonecrop S2 S2
Selaginella rupestris ledge spikemoss SX SX
Senna marilandica Maryland senna SH SH
Sideroxylon lycioides buckthorn S1.1 S1.1
Silene caroliniana var. pensylvanica Northern wild pink S1 S1
Silene virginica fire-pink S1 S1 S1
Sisyrinchium mucronatum Michaux's blue-eyed-grass S1.1 S1.1 S1.1
Smilax bona-nox saw greenbrier S1 S1
Smilax hispida weak-prickle greenbrier S1 S1
Smilax pseudochina long-stalk greenbrier S2 S2
Solidago arguta var. arguta cutleaf goldenrod S1 S1 S1
Solidago latissimifolia Elliott's goldenrod S1 S1
Solidago squarrosa squarrose goldenrod SH SH
Solidago stricta wandlike goldenrod SX SX
Solidago tarda late goldenrod S1.1 S1.1
Solidago uliginosa bog goldenrod S1.1 S1.1
Solidago ulmifolia var. ulmifolia elm-leaf goldenrod S2 S2 S2
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Spartina pectinata fresh water cordgrass S1.1 S1.1
Sphenopholis pensylvanica swamp wedgescale grass S1 S1 S1
Spiraea alba var. alba narrowleaf white spiraea S1 S1
Spiraea alba var. latifolia broad-leaf white spiraea S1 S1 S1
Spiranthes lucida shining ladies'-tresses SH SH SH
Spiranthes odorata fragrant ladies'-tresses SH SH
Spiranthes praecox grassleaf ladies'-tresses SH SH SH
Spiranthes tuberosa little ladies'-tresses SH SH SH
Spiranthes vernalis twisted ladies'-tresses S2 S2
Sporobolus compositus var. compositus tall dropseed SH SH
Stachys tenuifolia smooth hedge-nettle S1.1 S1.1 S1.1
Stellaria alsine trailing starwort S2 S2
Stenanthium leimanthoides death-camus SH SH
Symphyotrichum concolor var. concolor Eastern silvery aster SH SH
Symphyotrichum laeve var. concinnum narrow-leaved smooth blue aster S1 S1
Symphyotrichum laeve var. laeve smooth blue aster S1 S1 SH
Symphyotrichum prenanthoides crooked-stem aster S1 S1
Taenidia integerrima yellow pimpernel S1.1 S1.1
Taxodium distichum bald cypress S2 S2
Tephrosia spicata spiked hoary-pea SH SH
Thalictrum dioicum early meadowrue S1 S1
Thalictrum revolutum waxleaf meadowrue S1 S1 S1
Thaspium barbinode hairy-jointed meadow-parsnip S1 S1
Thyrsanthella difformis climbing dogbane S1 S1
Tiedemannia canbyi (GE, LE) Canby's dropwort SX SX
Toxicodendron pubescens poison oak S2 S2
Triantha racemosa coastal false-asphodel SX SX
Trichophorum planifolium bashful bulrush S2 S2
Trichostema setaceum narrowleaf bluecurls S1 S1
Triclisperma paucifolia gay-wing milkwort SX SX
Tridens chapmanii Chapman's purple-top S1.1 S1.1
Trientalis borealis subsp. borealis Northern starflower S1 S1
Triglochin striata three-ribbed arrow-grass SH SH
Trillium cernuum nodding trillium S2 S2 S2
Trillium erectum ill-scented trillium S1.1 S1.1
Triosteum angustifolium var. angustifolium yellowleaf tinker's-weed S1 S1 S1
Triosteum aurantiacum var. aurantiacum coffee tinker's-weed S1 S1
Triosteum perfoliatum perfoliate tinker's-weed S1.1 S1.1 S1.1
Triphora trianthophoros three-birds orchid S1 S1
Tsuga canadensis Eastern hemlock S1 S1 S1
Turritis glabra tower-mustard SH SH
Utricularia cornuta horned bladderwort SH SH
Utricularia inflata large swollen bladderwort S1 S1
SCIENTIFIC NAME COMMON NAME STATE
STATUS PIEDMONT
STATUS
COASTAL PLAIN
STATUS
Utricularia juncea Southern bladderwort S2 S2
Utricularia minor lesser bladderwort SX SX
Utricularia purpurea purple bladderwort S1 S1
Utricularia resupinata Northeastern bladderwort S2 S2
Utricularia subulata zigzag bladderwort S2 S2
Vaccinium angustifolium late lowbush blueberry SH SH
Veratrum latifolium broadleaf bunchflower SH SH
Veratrum virginicum Virginia bunchflower S2 S2
Verbesina alternifolia wingstem S1.1 S1.1
Veronica americana American speedwell S1 S1
Veronicastrum virginicum Culver's-root S1 S1 S1
Viburnum cassinoides Northern wild raisin SH SH
Viburnum lentago nannyberry S1.1 S1.1
Viburnum rafinesquianum downy arrow-wood S1 S1
Viola macloskeyi var. pallens smooth white violet S1 S1 S1
Viola pedata blue bird's-foot violet S1 S1 S1
Viola rotundifolia yellow roundleaf violet S2 S2
Woodsia obtusa subsp. obtusa blunt-lobe woodsia S1 S1 S1
Xerophyllum asphodeloides Eastern turkeybeard SX SX
Xyris fimbriata fringed yellow-eyed-grass S1 S1
Xyris smalliana Small's yellow-eyed-grass S2 S2
Zannichellia palustris horned pondweed S2 S2 S2
Zanthoxylum americanum Northern prickly-ash SH SH
Zizia aptera wingless Alexander S1 S1
Zizia aurea golden Alexander S2 S2
Zostera marina var. stenophylla eel-grass S1 S1